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力士樂(lè)溢流閥DB20-2-5X/315京南華建*                                                                             減壓閥的基本性能
(1) 調(diào)壓范圍：它是指減壓閥輸出壓力P2的可調(diào)范圍，在此范圍內(nèi)要求達(dá)到規(guī)定的精度。調(diào)壓范圍主要與調(diào)壓彈簧的剛度有關(guān)。
(2) 壓力特性：它是指流量g為定值時(shí)，因輸入壓力波動(dòng)而引起輸出壓力波動(dòng)的特性。輸出壓力波動(dòng)越小，減壓閥的特性越好。輸出壓力必須低于輸入壓力—定值才基本上不隨輸入壓力變化而變化。
(3) 流量特性：它是指輸入壓力—定時(shí)，輸出壓力隨輸出流量g的變化而變化的持性。當(dāng)流量g發(fā)生變化時(shí)，輸出壓力的變化越小越好。一般輸出壓力越低，它隨輸出流量的變化波動(dòng)就越小。                                                                                                                                               力士樂(lè)溢流閥一種液壓壓力控制閥。在液壓設(shè)備中主要起定壓溢流作用，穩(wěn)壓，系統(tǒng)卸荷和安全保護(hù)作用。定壓溢流作用：在定量泵節(jié)流調(diào)節(jié)系統(tǒng)中，定量泵提供的是恒定流量。當(dāng)系統(tǒng)壓力增大時(shí)，會(huì)使流量需求減小。此時(shí)溢流閥開(kāi)啟，使多余流量溢回油箱，保證溢流閥進(jìn)口壓力，即泵出口壓力恒定（閥口常隨壓力波動(dòng)開(kāi)啟）。穩(wěn)壓作用：溢流閥串聯(lián)在回油路上，溢流閥產(chǎn)生背壓，運(yùn)動(dòng)部件平穩(wěn)性增加。系統(tǒng)卸荷作用：在溢流閥的遙控口                                                                                     DBDS6K-1X/100
DBDS20D1X/315
DB10-5X/100
DBW20B2N-52/100-6EG110N9K4
DBW30B2N-52/100-6AG-110N9K4
DBDS 20K1X/400
DB20-2-5X/315
DBDS 30P1X/200
DB30G2-
DB30-2-5X/350
ZDB 10 VB2-4X/200V
DBDS20K1X/200
DB30-2-5X/100U
DB10-2-5X/100U
DBW20A2-5X/200EG24N9K4
DBW20A2-5X/200EG24N9K4+Z5L
DBW30R2-5X/1006AG110NK4
DBW30B2-5X/1006AG110NK4
DBW20B2-5X/1006AG110NK4
DBW10B2-5X/1006AG110NK4                                                                                                 DBDS10-P-1X/200
DBDS10K18/25
DBDS6P1X/315
DBDS10-P-1X/200
DBDS10K18/25
DBDS10P1X/200
DBDS6K121X/100
DBDS10-P-1X/200
DBDS10K18/25
DBDS10-P-1X/200
DBDS10K18/25
DN10DBDS-10K10/315
DBDS6K1X/315
DBDH10P/400
DBDH6P1X/315
DBDS30G1X/315
DBDS10P1X/200
DBDS6G1X/315
DBDS10K1X/315
DBDS20K1X/315
DBDS20P1X/200
DBDS20P10
DBDS30P1X/200V
DBDS30K1X/315V
DBDS30K1X/315
DBDS30K1X/25
DBDS25G1X/315
DBDA20P1X/25
DBDA20G1X/25
DBDA20K1X/100
DBDA20K1X/25V
DBDH20K1X/50
DBDA15G1X/25
DBDA10P1X/
DBDA10G1X/630V
DBDA10G1X/25V
DBDA10K1X/400
DBDH10P1X/50V
DBDH10G1X/315V
DBDS10P1X/25V
DBDS10K1X/315V
DBDA6P1X/25
DBDA6G1X/315V
DBDS6P1X/200V                                                                                                                          力士樂(lè)溢流閥DB20-2-5X/315京南華建*